Abelia plant named &#39;PIIAB-II&#39;

ABSTRACT

A new and distinct cultivar of  Abelia  plant named ‘PIIAB-II’, characterized by its compact, mounding to spreading growth habit, bronze new growth that turns to yellow-green and finally matures to green, semi-evergreen foliage that does not photobleach or burn in full sun like some other yellow foliage cultivars, early and abundant flowering during the growing season, light pink flower buds that open to white flowers with persistent pink sepals.

GENUS AND SPECIES OF PLANT CLAIMED

Abelia×grandiflora

VARIETY DENOMINATION

‘PIIAB-II’

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Abelia plant, botanically known as Abelia×grandiflora, commonly known as abelia, and hereinafter referred to by the cultivar name ‘PIIAB-II’. ‘PIIAB-II’ is grown primarily as an ornamental for landscape use and for use as a potted plant.

‘PIIAB-II’ originated in 2008 from open-pollinated seed of Abelia ‘PIIAB-I’ (unpatented) as part of a breeding program in Watkinsville, Ga. The cultivar ‘PIIAB-II’ originated and was selected by the inventor in a cultivated environment in Watkinsville, Ga. from the progeny of this open-pollination by continued evaluation for growth habit and foliage and flower characteristics.

Asexual reproduction of ‘PIIAB-II’ by stem cuttings in Watkinsville, Ga. since 2009 has shown that all the unique features of this new Abelia, as herein described, are stable and reproduced true-to-type through successive generations of such asexual propagation.

SUMMARY OF THE INVENTION

Plants of the new cultivar ‘PIIAB-II’ have not been observed under all possible environmental conditions. The phenotype may vary somewhat with changes in light, temperature, soil and rainfall without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be unique characteristics of ‘PIIAB-II’. These characteristics in combination distinguish ‘PIIAB-II’ as a new and distinct cultivar: 1. Compact, mounding to spreading growth habit; 2. Bronze new growth that turns to yellow-green and finally matures to green; 3. Semi-evergreen foliage that does not photobleach or burn in full sun like some other yellow foliage cultivars; 4. Early and abundant flowering during the growing season; 5. Light pink flower buds that open to white flowers with persistent pink sepals.

Plants of ‘PIIAB-II’ differ from plants of the parent, ‘PIIAB-I’, primarily in growth habit and sepal color. Plants of ‘PIIAB-II’ have a compact, mounding to spreading growth habit and pink sepals, whereas plants of ‘PIIAB-I’ have a larger, upright to rounded growth habit and burgundy-rose sepals.

Plants of ‘PIIAB-II’ can be compared to plants of ‘Canyon Creek’ (unpatented) but differ in growth habit, foliage color, and flower color. Plants of ‘PIIAB-II’ have a compact, mounding to spreading growth habit, foliage that does not photobleach or burn, and white flowers, whereas plants of ‘Canyon Creek’ have a larger, rounded to upright growth habit, foliage that is susceptible to photobleaching or burning, and pink flowers.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying color photographs illustrate the flower and foliage characteristics and the overall appearance of ‘PIIAB-II’, showing the colors as true as it is reasonably possible to obtain in color reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Abelia.

FIG. 1 illustrates the new growth, intermediate foliage color, flowers, and overall appearance of a plant of ‘PIIAB-II’ planted in the ground.

FIG. 2 illustrates the mature foliage, flowers, and overall appearance of a plant of ‘PIIAB-II’ planted in the ground.

FIG. 3 illustrates a close-up view of the flowers of ‘PIIAB-II’.

FIG. 4 illustrates a close-up view of the new growth of ‘PIIAB-II’.

DETAILED DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2007 Edition, except where general terms of ordinary dictionary significance are used. Plants used for the description were approximately two years old and were grown in 11.8 L containers under outdoor conditions in Watkinsville, Ga. Colors are described using The Royal Horticultural Society Colour Chart (R.H.S.).

-   Botanical classification: Abelia×grandiflora, cultivar ‘PIIAB-II’.     Parentage: Female, or seed, parent: Abelia×grandiflora ‘PIIAB-I’     (unpatented). Male, or pollen parent: unknown (open-pollinated).     Propagation: terminal cuttings. Time to initiate roots, summer:     about 21 days at 32° C. -   Plant description: Small, semi-evergreen, flowering shrub; compact,     mounding to spreading growth habit. Freely branching; pruning     enhances lateral branch development. -   Root description: Numerous, fine, fibrous and well-branched. -   Plant size: The original plant, now about four and a half years old     in the ground, is about 81 cm high from the soil level to the top of     the inflorescences and about 165 cm wide. First year stems have a     diameter of about 2 mm. Shape: round. Pubescence: finely pubescent.     Second year and older stems have a diameter of about 3 mm or more.     Shape: round. -   Trunk diameter: 1 cm at the soil line. Exfoliating bark, color 200B,     peels off to reveal the main trunk underneath, color 199C. -   Internode length: About 1.4 cm. -   Strength: Flexible when young, easily broken once mature. -   First year stem color (young): N34D. Color (woody): 200B. -   Second year and older stem color: 200B. -   Bark: Exfoliates in strips beginning on second year and older stems. -   Vegetative buds: Opposite in arrangement, ovoid, 2 pairs of bud     scales, finely pubescent. Color: 173B. Size: about 1.5 mm in length     and 1 mm in width. -   Foliage description: -   Arrangement: Opposite, simple. Length: about 3.7 cm. Width: about     1.4 cm. Shape: ovate. Apex: acute. Base: rounded to cuneate. Margin:     entire to dentate. -   Texture (upper surface): Lustrous, finely pubescent. Texture (lower     surface): matte, finely pubescent. -   Venation pattern: Pinnate. Venation color of emerging foliage (upper     surface): 1A. Venation color of emerging foliage (lower surface):     151B. Venation color of intermediate foliage (upper surface): N144A.     Venation color of intermediate foliage (lower surface): 144D.     Venation color of mature foliage (upper surface): 146A. Venation     color of mature foliage (lower surface): 147C. -   Color in developing foliage (upper surface): 169C. Color in     developing foliage (lower surface): N163D. Color in intermediate     foliage (upper surface): N144A. Color in intermediate foliage (lower     surface): 144D. Color in mature foliage (upper surface): 146A. Color     in mature foliage (lower surface): 147C. -   Petiole length: About 3 mm. Petiole diameter: about 1 mm. Petiole     color on mature foliage (upper and lower surfaces): 146B.     Pubescence: finely pubescent. -   Flower description: Flowers on new growth of the season, usually     from about May to June and sporadically until frost in Watkinsville,     Ga. An inflorescence is showy for up to about five months due to the     presence of persistent, colourful sepals. Individual flowers last     about a week and are self-cleaning. Flowers have a faint, pleasant     fragrance. -   Inflorescence type: Terminal and axillary panicles containing     campanulate flowers. Inflorescence height: about 5.5 cm.     Inflorescence width: about 6.5 cm. -   Peduncle: About 5 cm in length, about 2 mm in diameter, color is     178C, and finely pubescent. -   Individual flowers: About 2 cm in height and 1.4 cm in diameter. -   Flower buds: Length: about 2.2 mm; Diameter: about 4 mm; Color:     159C. -   Pedicels: About 5 mm in length, 178C in color, and finely pubescent. -   Calyx: Consisting of a single whorl of 5 sepals, each about 6 mm in     length, about 2 mm in width, and fused at the base, 38D in color,     and no pubescence. -   Petals: -   Arrangement/appearance: Single whorl of 5 fused petals per flower. -   Lobe length: About 5 mm. -   Lobe width: About 4 mm. -   Petal shape: Roughly spatulate. Petal apex: obtuse. Petal margin:     entire. Petal texture (upper and lower surfaces): smooth, with     sparse fine pubescence. -   Petal color: Upper and lower surfaces are NN155D. -   Stamens: -   Quantity/arrangement: 5 stamens per flower, about 5 mm in length.     Filaments: about 4 mm in length and about 0.5 mm in width, and     NN155D in color. Anthers: about 2.5 mm in length and 1 mm in width,     and NN155A in color. Pollen: produced in small quantities and is     NN155A in color. -   Pistils: -   Quantity: One pistil per flower. Pubescence: none. Pistil length:     about 2.5 cm in length. Stigma: round, about 1 mm in diameter, and     155B in color. Style: about 1.7 cm in length, about 1 mm in width,     and NN155D in color. Ovary: one inferior ovary per flower, about 7     mm in length, about 1 mm in width, and 173B in color. -   Fruit: -   Type/appearance: One-seeded, leathery, tubular achene. Length: about     7 mm. Width: about 2 mm. Mature color: 177A. -   Disease/pest resistance: Plants of the new Abelia have not been     shown to be resistant to pathogens and pests common to Abelia 

I claim:
 1. A new and distinct Abelia plant named ‘PIIAB-II’, as illustrated and described herein. 